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Cells & Diffusion

TermDefinition
Nucleus acts as a brain/controls all functions and activities (found in both plant and animal cells)
cell membrane allows certain molecules to go in or out of the cell. made up of 2 phosphorous layers interconnected molecules pass in or out of the cell (found in both)
cell wall supports and protects the cell; does not allow anything to go pass it (only in plant cell)
chromosomes proteins that contain DNA, which has coded info for making molecules
Rough Endoplasmic Reticulum stores and produces proteins (found in both)
Smooth Endoplasmic Reticulum stores and produces oils and fats (found in both)
golgi bodies modifies and packages proteins from the rough endoplasmic reticulum (found in both)
ribosomes helps rough endoplasmic reticulum make proteins, which is why it is attached to the rough E.R (found in both)
centrioles Helps with cell division/spindle fibres come from here (only in animal cell)
Mitochondria converts sugar into energy for the cell to move around (found in both)
vacuole stores waters and minerals (much bigger in plant cell) (found in both)
lysosomes breaks down: food, invading bacteria, old/damaged organelles (only in animal cell)
chloroplasts uses sunlight to make its own food: photosynthesis (C02 + H20 +light -> sugar + 02) (only found in plant cell)
diffusion movement of molecules from an area of high concentration an area of low concentration
osmosis movement of water molecules from high concentration of water to low concentration
permeable allows all molecules to diffuse across membrane
semi-permeable allows some molecules to diffuse across membrane (cell membrane)
non-permeable allows no molecules to diffuse across membrane (cell wall)
Created by: yuyuy
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